Sunkoshi-2 Storage Hydroelectric Projectसुनकोशी-२ जलाशय आयोजना
A ~1,110 MW storage project with a 166 m dam on the Sun Koshi River near Bhuwaneshwari, Sindhuli (~60 km from Kathmandu). Originally conceived as pumped-storage, it is being advanced by the government/NEA as a reservoir project with DPR and detailed design funded by ADB. Construction is not expected before 2030, with possible commissioning around 2034.
Installed capacity
1,110 MW
Storage
River / basin
Sun Koshi
Koshi basin
Location
Sindhuli / Ramechhap
Bagmati
Expected online
2034
Proposed / under development
Milestones & projected timeline
Key dates so far, with planned milestones marked. Future dates are targets from the developer or government and frequently shift.
- 2014
Proposed (with Sunkoshi-3) as pumped-storage
- 2024–25
DPR / detailed design procurement (ADB-funded)
- 2030Planned
Construction tentatively to begin
- 2034Planned
Targeted commercial operation
Location
Approximate dam-area location on OpenStreetMap — precise to the district and river reach, not the exact structure.
Sunkoshi-2 Storage Hydroelectric Project: key facts
Quick answers on capacity, river, developer, status and commissioning, drawn from the sourced data above.
What is the capacity of the Sunkoshi-2 Storage Hydroelectric Project?+
The Sunkoshi-2 Storage Hydroelectric Project has an installed capacity of 1,110 MW. It is a storage hydropower scheme.
Which river is the Sunkoshi-2 Storage Hydroelectric Project on?+
The project is on the Sun Koshi River, part of Nepal's Koshi basin, in Sindhuli / Ramechhap district, Bagmati Province.
Who is developing the Sunkoshi-2 Storage Hydroelectric Project?+
The Sunkoshi-2 Storage Hydroelectric Project is developed by Government of Nepal / NEA (Sunkoshi study office) (government (nea)), with ADB (DPR funding); earlier studied with JICA.
What is the status of the Sunkoshi-2 Storage Hydroelectric Project?+
As of mid-2026 the project is proposed / under development. Detailed project report / detailed design stage; ~166 m dam in Sindhuli; construction not started
When is the Sunkoshi-2 Storage Hydroelectric Project expected to be commissioned?+
The Sunkoshi-2 Storage Hydroelectric Project is expected to be commissioned around 2034, though dates for projects under development frequently shift.
Sources & data note
Figures for Sunkoshi-2 Storage Hydroelectric Project are compiled from the sources below and cross-checked where possible. Status and projected dates reflect research as of mid-2026 and may change as the project progresses. The map location is an approximate dam-area estimate. Commentary is Amarnepal's own.